fullpage.sty replacement [WAS: Problem with LaTeX snippets preview]

[Tim Burt <tcburt@rochester.rr.com>]

In another thread there was a discussion about replacing the
use of fullpage.sty with its functionality.
 NickD> Looks like the culprit is fullpage.sty - seems to be required
 NickD> by the LaTeX code that org-preview-latex-fragment generates.

 CarstenD> I believe the reason that this is used it to make sure that
 CarstenD> wide formulas can still be formatted reasonably well,
 CarstenD> without additional line breaks.  I guess we could inline
 CarstenD> the content of this small package.
 CarstenD> 
 CarstenD> Would somebody like to try to replace this with just the
 CarstenD> margin setting commands of fullpage.sty?
With continued thanks to Patrick Daly, the author of fullpage.sty and
my favorite LaTeX book "A Guide to LaTeX2e", I put the margin and text
size settings accomplished by fullpage.sty in org-format-latex-header
of org.el.
  Org-mode version 6.30trans (release_6.30d.882.gdbd63.dirty)
The diff below is offered as a step towards inlining the
functionality.  

The caveats:
 1. This is untested
    - When I execute org-export-as-pdf some other header appears in
      the .tex file, and I have not yet discovered the source of this
      other header.   
 2. This is the first time I've done a git diff.

If there are troubles in testing I will be happy to help resolve.  

Good morning,
Tim

Output of git diff org.el:
diff --git a/lisp/org.el b/lisp/org.el
index 89d3bc8..8772968 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -2678,13 +2678,24 @@ This is a property list with the following properties:
   :type 'plist)
 
 (defcustom org-format-latex-header "\\documentclass{article}
-\\usepackage{fullpage}         % do not remove
 \\usepackage{amssymb}
 \\usepackage[usenames]{color}
 \\usepackage{amsmath}
 \\usepackage{latexsym}
 \\usepackage[mathscr]{eucal}
-\\pagestyle{empty}             % do not remove"
+\\pagestyle{empty}             % do not remove
+\\setlength{\\textwidth}{\\paperwidth}
+\\addtolength{\\textwidth}{-3cm}
+\\setlength{\\oddsidemargin}{1.5cm}
+\\addtolength{\\oddsidemargin}{-2.54cm}
+\\setlength{\\evensidemargin}{\\oddsidemargin}
+\\setlength{\\textheight}{\\paperheight}
+\\addtolength{\\textheight}{-\\headheight}
+\\addtolength{\\textheight}{-\\headsep}
+\\addtolength{\\textheight}{-\\footskip}
+\\addtolength{\\textheight}{-3cm}
+\\setlength{\\topmargin}{1.5cm}
+\\addtolength{\\topmargin}{-2.54cm}"
   "The document header used for processing LaTeX fragments."
   :group 'org-latex
   :type 'string)